package com.xtwy.qrcodescan.zxing.camera;
import android.graphics.Point;
import android.hardware.Camera;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
/*
 * -----------------------------------------------------------------
 * Copyright (C) 2014-2016, by your company, All rights reserved.
 * -----------------------------------------------------------------
 * 文    件: PreviewCallback.java
 * 作    者: 侯建军
 * 版    权: 1.0.0
 * 描    述: 预览回调
 * 创建时间: 2018/9/14 10:27
 * 更新时间：2018/9/14 10:27
 * -----------------------------------------------------------------
 * 2018/9/14 10:27: 创建 PreviewCallback.java (侯建军);
 * -----------------------------------------------------------------
 */
public class PreviewCallback implements Camera.PreviewCallback {

    static final String TAG = PreviewCallback.class.getSimpleName();

    final CameraConfigurationManager configManager;
    Handler previewHandler;
    int previewMessage;

    public PreviewCallback(CameraConfigurationManager configManager) {
        this.configManager = configManager;
    }

    public void setHandler(Handler previewHandler, int previewMessage) {
        this.previewHandler = previewHandler;
        this.previewMessage = previewMessage;
    }

    @Override
    public void onPreviewFrame(byte[] data, Camera camera) {
        Point cameraResolution = configManager.getCameraResolution();
        Handler thePreviewHandler = previewHandler;
        if (cameraResolution != null && thePreviewHandler != null) {
            Message message = thePreviewHandler.obtainMessage(previewMessage, cameraResolution.x, cameraResolution.y, data);
            message.sendToTarget();
            previewHandler = null;
        } else {
            Log.d(TAG, "Got preview callback, but no handler or resolution available");
        }
    }
}
